As stated , start with Ackley. Compare data for the various A.I. ( Ackley Improved) chamberings to the standard chamberings , a decent place to start would be with the .22-250 , which of course itself started it's career as a Wildcat round prior to Remington adopting it for production (originally a .250-3000 Savage necked to .224 , there were a buncha versions from different folks) compare it to Ackley's version which had virtually no taper and a 40 degree shoulder as opposed to a 28 degree shoulder , the AI runs quite a bit faster than the standard .22-250.
Looking at those two will also bring you to the .220 Swift which again started life as a wildcat when Wotkyns necked down the .250-3000 to .224 ( notice a common denominator?) though the round put into production by Winchester was based on the old 6mm Lee Navy necked back.
Exploration of these will lead you various places , including to the yet hotter .224s such as the .22-284 and the .22-243 Middlestead , take a look at the hot .20s while you're at it.
Perhaps you'd like to take a look at Charles Newton's work too , along with Dick Casull ( protege of Ackley and developer of the .454 Casull) , Elmer Keith too , though he is not often thought of as a " Wildcatter" without his hotrodding of the .44 special we wouldn't have the .44 mag. Bryce Towsley , Townsend Whelen , Kenny Jarret , Mark Kexel (.277 Wolverine)....can't forget Harry Pope though he's thought of more as a maker and rifleman , H.H. Roberts who brought us the .257 Roberts , a cartridge which I still shoot a LOT and one of the best .25s of all time which was a 7 x 57 necked to .257 , the original version was a 15 degree shoulder but Remington changed it to a 20 degree when it went factory.
I could go on at length ( a LOT of length) about a HUGE variety of chamberings but this might provide you a small based to begin exploration.
In closing , an example of how " wildcatting" has had a dramatic effect on modern shooting...........the .250-3000 led to the .300 Savage , the .300 led to .308 winchester , and the .308 led to .243 , .260 ,7mm-08 , .358 federal and .358 win and a host of others.